Perhaps you should try some spelling variations:
"ct values increased" » "ct cases increased" (Expand Search), "ct dalys increased" (Expand Search), "ct also increased" (Expand Search), "_ values increased" (Expand Search), "i values increased" (Expand Search)
"ct values decrease" » "ct largest decrease" (Expand Search), "_ values decrease" (Expand Search), "i values decrease" (Expand Search)
"a large decrease" » "a larger decrease" (Expand Search), "a marked decrease" (Expand Search), "a large increases" (Expand Search), "_ large decrease" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ct values decrease") OR ("ct values increased"))) OR ("a large decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ct values decrease\") OR (\"ct values increased\"))) OR (\"a large decrease\"))".
• Removing quotes may allow a broader search: (((( ct values decrease ) OR ( ct values increased ))) OR ( a large decrease )).
• Adding a wildcard symbol may retrieve word variants: (((("ct values decrease") OR ("ct values increased"))) OR ("a large decrease"))*.